The only answer I can give is I don't think so, with one proviso, which is the study I did for the McDonald commission on the RCMP Security Service, Parliament and security matters, which dealt with this conceptual problem. As you all probably know, the outcome of that was to establish a committee of privy councillors. Each party in Parliament nominates a member to that committee, they're made privy councillors, and then that committee has complete access to confidential information. Then it launders that and produces a report for Parliament.
On March 17th, 2011. See this statement in context.